Forms of phosphorus in an oxisol under different soil tillage systems and cover plants in rotation with maize Reportar como inadecuado




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Mercedes Maria da Cunha Bustamante ; Zayra Azeredo do Prado Almondes ; Cícero Célio de Figueiredo ;Revista Brasileira de Ciência do Solo 2014, 38 3

Autor: Arminda Moreira de Carvalho

Fuente: http://www.redalyc.org/


Introducción



Revista Brasileira de Ciência do Solo ISSN: 0100-0683 revista@sbcs.org.br Sociedade Brasileira de Ciência do Solo Brasil Moreira de Carvalho, Arminda; da Cunha Bustamante, Mercedes Maria; do Prado Almondes, Zayra Azeredo; de Figueiredo, Cícero Célio FORMS OF PHOSPHORUS IN AN OXISOL UNDER DIFFERENT SOIL TILLAGE SYSTEMS AND COVER PLANTS IN ROTATION WITH MAIZE Revista Brasileira de Ciência do Solo, vol.
38, núm.
3, 2014, pp.
972-979 Sociedade Brasileira de Ciência do Solo Viçosa, Brasil Disponível em: http:--www.redalyc.org-articulo.oa?id=180231349023 Como citar este artigo Número completo Mais artigos Home da revista no Redalyc Sistema de Informação Científica Rede de Revistas Científicas da América Latina, Caribe , Espanha e Portugal Projeto acadêmico sem fins lucrativos desenvolvido no âmbito da iniciativa Acesso Aberto 972 Arminda Moreira de Carvalho et al. FORMS OF PHOSPHORUS IN AN OXISOL UNDER DIFFERENT SOIL TILLAGE SYSTEMS AND COVER PLANTS IN ROTATION WITH MAIZE(1) Arminda Moreira de Carvalho(2), Mercedes Maria da Cunha Bustamante(3), Zayra Azeredo do Prado Almondes(4) & Cícero Célio de Figueiredo(5) SUMMARY Phosphorus fractions play a key role in sustaining the productivity of acidsavanna Oxisols and are influenced by tillage practices.
The aim of this study was to quantify different P forms in an Oxisol (Latossolo Vermelho-Amarelo) from the central savanna region of Brazil under management systems with cover crops in maize rotation.
Three cover crops (Canavalia brasiliensis, Cajanus cajan (L.), and Raphanus sativus L.) were investigated in maize rotation systems.
These cover crops were compared to spontaneous vegetation.
The inorganic forms NaHCO3-iP and NaOH-iP represented more than half of the total P in the samples collected at the depth of 5-10 cm during the rainy season when the maize was grown.
The concentration of inorganic P of greater availability (NaHCO3-iP and NaOH-iP) was higher in the soil under no-tillage at the depth ...





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